Difference between revisions of "Free (command)"
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↑ http://man7.org/linux/man-pages/man1/free.1.html
↑ https://unix.stackexchange.com/questions/87908/how-do-you-empty-the-buffers-and-cache-on-a-linux-system
| Line 21: | Line 21: | ||
* <code>[[sar -r]]</code> | * <code>[[sar -r]]</code> | ||
* [[RAM]] and [[file Systems|filesystem]] | * [[RAM]] and [[file Systems|filesystem]] | ||
| − | * | + | * {{swap}} |
* [[linux-ftools]] | * [[linux-ftools]] | ||
[[Category:Linux]] | [[Category:Linux]] | ||
Revision as of 06:57, 7 January 2020
free [1] display amount of free and used memory in the system
free -h
total used free shared buff/cache available
Mem: 503G 21G 43G 2.1M 438G 478G
Swap: 975M 50M 925M
free
total used free shared buff/cache available
Mem: 528029540 22891532 48868648 2128 456269360 501718128
Swap: 999420 51456 947964
Activities
- Emptying the buffers cache:
free -h && sync && echo 3 > /proc/sys/vm/drop_caches && free -h[2] - Use
fiowithdirect=0to fill up your cache.
See also
sar -r- RAM and filesystem
- Swap,
swapon,swapoff,mkswap,swaplabel,free,sar -r,sar -S,sar -W,vmstat,vm.swappiness,/proc/swaps,/etc/fstab, Add a swap disk,systemd.swap - linux-ftools
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